Enum <-> String

Do we have any general purpose C++ class to convert a enumeration value to corresponding string?

Not by mapping to string tables or maps... If we have 100's of enumeration it is just impossible to define corresponding strings to enums....

I have seen some implementation in .NET

---- Enum::GetName
enum Styles
{
one=1,
two,
three,
four
};

Enum::GetName(__typeof(Styles), __box(3)));

This returns the corresponding name from the enum itself 'three'....

Do we have any similar class for using in normal C++ application not depending on any MS specific libraries?

I will go out on a limb here and say:
No

Any better approaches...?

If you are not compiling your program with debug information, the running binary is unlikely to know what name you used in the source code for an enum value.

If you need the behavior, I would recommend writing yourself an Enum class that implements that behavior.

Quote:

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Originally Posted by chanduonline

Do we have any general purpose C++ class to convert a enumeration value to corresponding string?

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Yes, it's called a map.

Quote:

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Not by mapping to string tables or maps

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So you are not looking for a class. You're looking for whether this is built into the language itself. The answer is no, C++ has no "reflection" capabilities similar to Java or ways of turning a variable into its string equivalent.

Regards,

Paul McKenzie

Well, as everyone else has already stated the answer is NO. But since the enum you posted composed of string representation of numbers. You can do something like

Code:

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enum some_enum
{
    zero,
    one,
    two,
    three
};

int main(void)
{
    std::stringstream SStr;
    enum some_enum se = one;

    SStr << se; // Implicitly converted to int here
    std::cout << SStr.str() << std::endl;
}

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It's not of much use, when you have members of your enum named different like car, cycle etc etc.
HTH,
Regards,
Usman.

I know this might be inefficient but I used CStringArray for the purpose.